Stelios H. Zanakis

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E-learning has seen tremendous growth in recent years. More and more, university courses are now available online to a potentially global audience. however, a significant shortcoming of e-learning technologies has been poor support for grouporiented learning. We believe that virtual worlds offer a potential solution. Unlike videoconferencing (for instance),(More)
This paper examines the influence and direction of social and economic determinants of the HIV/AIDS global epidemic across nations and assesses each country’s efficiency in battling the pandemic. The initial dataset consisted of 151 countries with five dependent variables and 90 explanatory variables (reduced to 50 after extensive exploratory data analysis(More)
Information Systems (IS) effectiveness has been studied over the past three decades, with user satisfaction utilized as a key measure. However, very little attention has been given to the role of user-perceived cognitive value of IS in measuring the effectiveness of such systems. Therefore, this article defines and articulates user-perceived value of IS as(More)
This paper presents an application of knowledge discovery via rough sets to a real life case study of global investing risk in 52 countries using 27 indicator variables. The aim is explanation of the classification of the countries according to financial risks assessed by Wall Street Journal international experts and knowledge discovery from data via(More)